320 lines
14 KiB
C
320 lines
14 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2015, Freescale Semiconductor, Inc.
|
||
|
|
* Copyright 2016-2017 NXP
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
||
|
|
* are permitted provided that the following conditions are met:
|
||
|
|
*
|
||
|
|
* o Redistributions of source code must retain the above copyright notice, this list
|
||
|
|
* of conditions and the following disclaimer.
|
||
|
|
*
|
||
|
|
* o Redistributions in binary form must reproduce the above copyright notice, this
|
||
|
|
* list of conditions and the following disclaimer in the documentation and/or
|
||
|
|
* other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* o Neither the name of the copyright holder nor the names of its
|
||
|
|
* contributors may be used to endorse or promote products derived from this
|
||
|
|
* software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
|
||
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
||
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
#ifndef _FSL_LPSPI_EDMA_H_
|
||
|
|
#define _FSL_LPSPI_EDMA_H_
|
||
|
|
|
||
|
|
#include "fsl_lpspi.h"
|
||
|
|
#include "fsl_edma.h"
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @addtogroup lpspi_edma_driver
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/***********************************************************************************************************************
|
||
|
|
* Definitions
|
||
|
|
**********************************************************************************************************************/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Forward declaration of the _lpspi_master_edma_handle typedefs.
|
||
|
|
*/
|
||
|
|
typedef struct _lpspi_master_edma_handle lpspi_master_edma_handle_t;
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Forward declaration of the _lpspi_slave_edma_handle typedefs.
|
||
|
|
*/
|
||
|
|
typedef struct _lpspi_slave_edma_handle lpspi_slave_edma_handle_t;
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Completion callback function pointer type.
|
||
|
|
*
|
||
|
|
* @param base LPSPI peripheral base address.
|
||
|
|
* @param handle Pointer to the handle for the LPSPI master.
|
||
|
|
* @param status Success or error code describing whether the transfer completed.
|
||
|
|
* @param userData Arbitrary pointer-dataSized value passed from the application.
|
||
|
|
*/
|
||
|
|
typedef void (*lpspi_master_edma_transfer_callback_t)(LPSPI_Type *base,
|
||
|
|
lpspi_master_edma_handle_t *handle,
|
||
|
|
status_t status,
|
||
|
|
void *userData);
|
||
|
|
/*!
|
||
|
|
* @brief Completion callback function pointer type.
|
||
|
|
*
|
||
|
|
* @param base LPSPI peripheral base address.
|
||
|
|
* @param handle Pointer to the handle for the LPSPI slave.
|
||
|
|
* @param status Success or error code describing whether the transfer completed.
|
||
|
|
* @param userData Arbitrary pointer-dataSized value passed from the application.
|
||
|
|
*/
|
||
|
|
typedef void (*lpspi_slave_edma_transfer_callback_t)(LPSPI_Type *base,
|
||
|
|
lpspi_slave_edma_handle_t *handle,
|
||
|
|
status_t status,
|
||
|
|
void *userData);
|
||
|
|
|
||
|
|
/*! @brief LPSPI master eDMA transfer handle structure used for transactional API. */
|
||
|
|
struct _lpspi_master_edma_handle
|
||
|
|
{
|
||
|
|
volatile bool isPcsContinuous; /*!< Is PCS continuous in transfer. */
|
||
|
|
|
||
|
|
volatile bool isByteSwap; /*!< A flag that whether should byte swap. */
|
||
|
|
|
||
|
|
volatile uint8_t fifoSize; /*!< FIFO dataSize. */
|
||
|
|
|
||
|
|
volatile uint8_t rxWatermark; /*!< Rx watermark. */
|
||
|
|
|
||
|
|
volatile uint8_t bytesEachWrite; /*!< Bytes for each write TDR . */
|
||
|
|
volatile uint8_t bytesEachRead; /*!< Bytes for each read RDR . */
|
||
|
|
|
||
|
|
volatile uint8_t bytesLastRead; /*!< Bytes for last read RDR . */
|
||
|
|
volatile uint8_t isThereExtraRxBytes; /*!< Is there extra RX byte. */
|
||
|
|
|
||
|
|
uint8_t *volatile txData; /*!< Send buffer. */
|
||
|
|
uint8_t *volatile rxData; /*!< Receive buffer. */
|
||
|
|
volatile size_t txRemainingByteCount; /*!< Number of bytes remaining to send.*/
|
||
|
|
volatile size_t rxRemainingByteCount; /*!< Number of bytes remaining to receive.*/
|
||
|
|
|
||
|
|
volatile uint32_t writeRegRemainingTimes; /*!< Write TDR register remaining times. */
|
||
|
|
volatile uint32_t readRegRemainingTimes; /*!< Read RDR register remaining times. */
|
||
|
|
|
||
|
|
uint32_t totalByteCount; /*!< Number of transfer bytes*/
|
||
|
|
|
||
|
|
uint32_t txBuffIfNull; /*!< Used if there is not txData for DMA purpose.*/
|
||
|
|
uint32_t rxBuffIfNull; /*!< Used if there is not rxData for DMA purpose.*/
|
||
|
|
|
||
|
|
uint32_t transmitCommand; /*!< Used to write TCR for DMA purpose.*/
|
||
|
|
|
||
|
|
volatile uint8_t state; /*!< LPSPI transfer state , _lpspi_transfer_state.*/
|
||
|
|
|
||
|
|
uint8_t nbytes; /*!< eDMA minor byte transfer count initially configured. */
|
||
|
|
|
||
|
|
lpspi_master_edma_transfer_callback_t callback; /*!< Completion callback. */
|
||
|
|
void *userData; /*!< Callback user data. */
|
||
|
|
|
||
|
|
edma_handle_t *edmaRxRegToRxDataHandle; /*!<edma_handle_t handle point used for RxReg to RxData buff*/
|
||
|
|
edma_handle_t *edmaTxDataToTxRegHandle; /*!<edma_handle_t handle point used for TxData to TxReg buff*/
|
||
|
|
|
||
|
|
edma_tcd_t lpspiSoftwareTCD[3]; /*!<SoftwareTCD , internal used*/
|
||
|
|
};
|
||
|
|
|
||
|
|
/*! @brief LPSPI slave eDMA transfer handle structure used for transactional API.*/
|
||
|
|
struct _lpspi_slave_edma_handle
|
||
|
|
{
|
||
|
|
volatile bool isByteSwap; /*!< A flag that whether should byte swap. */
|
||
|
|
|
||
|
|
volatile uint8_t fifoSize; /*!< FIFO dataSize. */
|
||
|
|
|
||
|
|
volatile uint8_t rxWatermark; /*!< Rx watermark. */
|
||
|
|
|
||
|
|
volatile uint8_t bytesEachWrite; /*!< Bytes for each write TDR . */
|
||
|
|
volatile uint8_t bytesEachRead; /*!< Bytes for each read RDR . */
|
||
|
|
|
||
|
|
volatile uint8_t bytesLastRead; /*!< Bytes for last read RDR . */
|
||
|
|
volatile uint8_t isThereExtraRxBytes; /*!< Is there extra RX byte. */
|
||
|
|
|
||
|
|
uint8_t nbytes; /*!< eDMA minor byte transfer count initially configured. */
|
||
|
|
|
||
|
|
uint8_t *volatile txData; /*!< Send buffer. */
|
||
|
|
uint8_t *volatile rxData; /*!< Receive buffer. */
|
||
|
|
volatile size_t txRemainingByteCount; /*!< Number of bytes remaining to send.*/
|
||
|
|
volatile size_t rxRemainingByteCount; /*!< Number of bytes remaining to receive.*/
|
||
|
|
|
||
|
|
volatile uint32_t writeRegRemainingTimes; /*!< Write TDR register remaining times . */
|
||
|
|
volatile uint32_t readRegRemainingTimes; /*!< Read RDR register remaining times . */
|
||
|
|
|
||
|
|
uint32_t totalByteCount; /*!< Number of transfer bytes*/
|
||
|
|
|
||
|
|
uint32_t txBuffIfNull; /*!< Used if there is not txData for DMA purpose.*/
|
||
|
|
uint32_t rxBuffIfNull; /*!< Used if there is not rxData for DMA purpose.*/
|
||
|
|
|
||
|
|
volatile uint8_t state; /*!< LPSPI transfer state.*/
|
||
|
|
|
||
|
|
uint32_t errorCount; /*!< Error count for slave transfer.*/
|
||
|
|
|
||
|
|
lpspi_slave_edma_transfer_callback_t callback; /*!< Completion callback. */
|
||
|
|
void *userData; /*!< Callback user data. */
|
||
|
|
|
||
|
|
edma_handle_t *edmaRxRegToRxDataHandle; /*!<edma_handle_t handle point used for RxReg to RxData buff*/
|
||
|
|
edma_handle_t *edmaTxDataToTxRegHandle; /*!<edma_handle_t handle point used for TxData to TxReg*/
|
||
|
|
|
||
|
|
edma_tcd_t lpspiSoftwareTCD[2]; /*!<SoftwareTCD , internal used*/
|
||
|
|
};
|
||
|
|
|
||
|
|
/***********************************************************************************************************************
|
||
|
|
* API
|
||
|
|
**********************************************************************************************************************/
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
extern "C" {
|
||
|
|
#endif /*_cplusplus*/
|
||
|
|
|
||
|
|
/*Transactional APIs*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Initializes the LPSPI master eDMA handle.
|
||
|
|
*
|
||
|
|
* This function initializes the LPSPI eDMA handle which can be used for other LPSPI transactional APIs. Usually, for a
|
||
|
|
* specified LPSPI instance, call this API once to get the initialized handle.
|
||
|
|
*
|
||
|
|
* Note that the LPSPI eDMA has a separated (Rx and Rx as two sources) or shared (Rx and Tx are the same source) DMA
|
||
|
|
* request source.
|
||
|
|
* (1) For a separated DMA request source, enable and set the Rx DMAMUX source for edmaRxRegToRxDataHandle and
|
||
|
|
* Tx DMAMUX source for edmaIntermediaryToTxRegHandle.
|
||
|
|
* (2) For a shared DMA request source, enable and set the Rx/Rx DMAMUX source for edmaRxRegToRxDataHandle.
|
||
|
|
*
|
||
|
|
* @param base LPSPI peripheral base address.
|
||
|
|
* @param handle LPSPI handle pointer to lpspi_master_edma_handle_t.
|
||
|
|
* @param callback LPSPI callback.
|
||
|
|
* @param userData callback function parameter.
|
||
|
|
* @param edmaRxRegToRxDataHandle edmaRxRegToRxDataHandle pointer to edma_handle_t.
|
||
|
|
* @param edmaTxDataToTxRegHandle edmaTxDataToTxRegHandle pointer to edma_handle_t.
|
||
|
|
*/
|
||
|
|
void LPSPI_MasterTransferCreateHandleEDMA(LPSPI_Type *base,
|
||
|
|
lpspi_master_edma_handle_t *handle,
|
||
|
|
lpspi_master_edma_transfer_callback_t callback,
|
||
|
|
void *userData,
|
||
|
|
edma_handle_t *edmaRxRegToRxDataHandle,
|
||
|
|
edma_handle_t *edmaTxDataToTxRegHandle);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief LPSPI master transfer data using eDMA.
|
||
|
|
*
|
||
|
|
* This function transfers data using eDMA. This is a non-blocking function, which returns right away. When all data
|
||
|
|
* is transferred, the callback function is called.
|
||
|
|
*
|
||
|
|
* Note:
|
||
|
|
* The transfer data size should be an integer multiple of bytesPerFrame if bytesPerFrame is less than or equal to 4.
|
||
|
|
* For bytesPerFrame greater than 4:
|
||
|
|
* The transfer data size should be equal to bytesPerFrame if the bytesPerFrame is not an integer multiple of 4.
|
||
|
|
* Otherwise, the transfer data size can be an integer multiple of bytesPerFrame.
|
||
|
|
*
|
||
|
|
* @param base LPSPI peripheral base address.
|
||
|
|
* @param handle pointer to lpspi_master_edma_handle_t structure which stores the transfer state.
|
||
|
|
* @param transfer pointer to lpspi_transfer_t structure.
|
||
|
|
* @return status of status_t.
|
||
|
|
*/
|
||
|
|
status_t LPSPI_MasterTransferEDMA(LPSPI_Type *base, lpspi_master_edma_handle_t *handle, lpspi_transfer_t *transfer);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief LPSPI master aborts a transfer which is using eDMA.
|
||
|
|
*
|
||
|
|
* This function aborts a transfer which is using eDMA.
|
||
|
|
*
|
||
|
|
* @param base LPSPI peripheral base address.
|
||
|
|
* @param handle pointer to lpspi_master_edma_handle_t structure which stores the transfer state.
|
||
|
|
*/
|
||
|
|
void LPSPI_MasterTransferAbortEDMA(LPSPI_Type *base, lpspi_master_edma_handle_t *handle);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Gets the master eDMA transfer remaining bytes.
|
||
|
|
*
|
||
|
|
* This function gets the master eDMA transfer remaining bytes.
|
||
|
|
*
|
||
|
|
* @param base LPSPI peripheral base address.
|
||
|
|
* @param handle pointer to lpspi_master_edma_handle_t structure which stores the transfer state.
|
||
|
|
* @param count Number of bytes transferred so far by the EDMA transaction.
|
||
|
|
* @return status of status_t.
|
||
|
|
*/
|
||
|
|
status_t LPSPI_MasterTransferGetCountEDMA(LPSPI_Type *base, lpspi_master_edma_handle_t *handle, size_t *count);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Initializes the LPSPI slave eDMA handle.
|
||
|
|
*
|
||
|
|
* This function initializes the LPSPI eDMA handle which can be used for other LPSPI transactional APIs. Usually, for a
|
||
|
|
* specified LPSPI instance, call this API once to get the initialized handle.
|
||
|
|
*
|
||
|
|
* Note that LPSPI eDMA has a separated (Rx and Tx as two sources) or shared (Rx and Tx as the same source) DMA request
|
||
|
|
* source.
|
||
|
|
*
|
||
|
|
* (1) For a separated DMA request source, enable and set the Rx DMAMUX source for edmaRxRegToRxDataHandle and
|
||
|
|
* Tx DMAMUX source for edmaTxDataToTxRegHandle.
|
||
|
|
* (2) For a shared DMA request source, enable and set the Rx/Rx DMAMUX source for edmaRxRegToRxDataHandle .
|
||
|
|
*
|
||
|
|
* @param base LPSPI peripheral base address.
|
||
|
|
* @param handle LPSPI handle pointer to lpspi_slave_edma_handle_t.
|
||
|
|
* @param callback LPSPI callback.
|
||
|
|
* @param userData callback function parameter.
|
||
|
|
* @param edmaRxRegToRxDataHandle edmaRxRegToRxDataHandle pointer to edma_handle_t.
|
||
|
|
* @param edmaTxDataToTxRegHandle edmaTxDataToTxRegHandle pointer to edma_handle_t.
|
||
|
|
*/
|
||
|
|
void LPSPI_SlaveTransferCreateHandleEDMA(LPSPI_Type *base,
|
||
|
|
lpspi_slave_edma_handle_t *handle,
|
||
|
|
lpspi_slave_edma_transfer_callback_t callback,
|
||
|
|
void *userData,
|
||
|
|
edma_handle_t *edmaRxRegToRxDataHandle,
|
||
|
|
edma_handle_t *edmaTxDataToTxRegHandle);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief LPSPI slave transfers data using eDMA.
|
||
|
|
*
|
||
|
|
* This function transfers data using eDMA. This is a non-blocking function, which return right away. When all data
|
||
|
|
* is transferred, the callback function is called.
|
||
|
|
*
|
||
|
|
* Note:
|
||
|
|
* The transfer data size should be an integer multiple of bytesPerFrame if bytesPerFrame is less than or equal to 4.
|
||
|
|
* For bytesPerFrame greater than 4:
|
||
|
|
* The transfer data size should be equal to bytesPerFrame if the bytesPerFrame is not an integer multiple of 4.
|
||
|
|
* Otherwise, the transfer data size can be an integer multiple of bytesPerFrame.
|
||
|
|
*
|
||
|
|
* @param base LPSPI peripheral base address.
|
||
|
|
* @param handle pointer to lpspi_slave_edma_handle_t structure which stores the transfer state.
|
||
|
|
* @param transfer pointer to lpspi_transfer_t structure.
|
||
|
|
* @return status of status_t.
|
||
|
|
*/
|
||
|
|
status_t LPSPI_SlaveTransferEDMA(LPSPI_Type *base, lpspi_slave_edma_handle_t *handle, lpspi_transfer_t *transfer);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief LPSPI slave aborts a transfer which is using eDMA.
|
||
|
|
*
|
||
|
|
* This function aborts a transfer which is using eDMA.
|
||
|
|
*
|
||
|
|
* @param base LPSPI peripheral base address.
|
||
|
|
* @param handle pointer to lpspi_slave_edma_handle_t structure which stores the transfer state.
|
||
|
|
*/
|
||
|
|
void LPSPI_SlaveTransferAbortEDMA(LPSPI_Type *base, lpspi_slave_edma_handle_t *handle);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Gets the slave eDMA transfer remaining bytes.
|
||
|
|
*
|
||
|
|
* This function gets the slave eDMA transfer remaining bytes.
|
||
|
|
*
|
||
|
|
* @param base LPSPI peripheral base address.
|
||
|
|
* @param handle pointer to lpspi_slave_edma_handle_t structure which stores the transfer state.
|
||
|
|
* @param count Number of bytes transferred so far by the eDMA transaction.
|
||
|
|
* @return status of status_t.
|
||
|
|
*/
|
||
|
|
status_t LPSPI_SlaveTransferGetCountEDMA(LPSPI_Type *base, lpspi_slave_edma_handle_t *handle, size_t *count);
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
}
|
||
|
|
#endif /*_cplusplus*/
|
||
|
|
/*!
|
||
|
|
*@}
|
||
|
|
*/
|
||
|
|
|
||
|
|
#endif /*_FSL_LPSPI_EDMA_H_*/
|